ABench: Adversarily Benchmarking Large Language Models across Taxonomized Values

Liping Yang, Yongqi Leng, Jingting Zheng, Yuqi Ren, Shaolin Zhu, Deyi Xiong


Abstract
Ensuring the alignment of Large Language Models (LLMs) with diverse cultural values is critical for their safe global deployment. However, existing alignment benchmarks are predominantly English-centric or confined to simple discriminative tasks. Moreover, they often fail to effectively evaluate model robustness against complex, adversarial inductions within specific cultural contexts. To address these limitations, we propose ABench, a fine-grained, handcrafted benchmark specifically tailored to taxonomized values in Chinese. Grounded in a rigorous hierarchical taxonomy comprising 158 derived value subcategories, ABench consists of 2,895 open-ended questions. These questions employ techniques such as role-playing and logical traps to probe the stability of models’ stances in adversarially induced contexts. Furthermore, we propose a weighted automated evaluation framework that utilizes question-specific scoring criteria for nuanced assessment. Extensive experiments on 16 mainstream LLMs reveal that most models exhibit significant vulnerabilities when subjected to sophisticated adversary attacks on values (scoring below 60). This underscores the need for more robust, culturally specific alignment strategies. Our data will be publicly released to promote further research on taxonomized value alignment.
Anthology ID:
2026.emnlp-main.831
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
19313–19328
Language:
URL:
https://aclanthology.org/2026.emnlp-main.831/
DOI:
Bibkey:
Cite (ACL):
Liping Yang, Yongqi Leng, Jingting Zheng, Yuqi Ren, Shaolin Zhu, and Deyi Xiong. 2026. ABench: Adversarily Benchmarking Large Language Models across Taxonomized Values. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 19313–19328, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
ABench: Adversarily Benchmarking Large Language Models across Taxonomized Values (Yang et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-main.831.pdf